The Angels are commonly called “minds,” “intelligences” by theologians and philosophers. Dionysius calls them “celestial intelligences,” “intellectual beings,” “supercelestial beings,” etc. Exalted knowledge and intelligence are the most outstanding qualities of an Angel according to human standards…
In calling the Angels “minds” and “intelligences” we do not mean to limit the Angelic nature to the intellect but we rather wish to stress the power of the Angelic perception, superior by far to our own both in itself and in its mode of operation. We speak here of the natural knowledge of the Angels, the one which is proportioned to their condition of pure spirits; and we abstract, for the time being, from their present condition of comprehensors in which a Godlike, more sublime knowledge is imparted to them through the light of glory. The natural intelligence of an Angel is common to both the good and the fallen angels, the demons. “Although an Angel’s intellect is not his own substance, just as our intellects are not our own substances, yet he possesses such penetration, that he is able, at one glance, to take in the whole field of science lying open to his perception, just as we, at a glance, can take in the entire field of vision lying exposed to our eyes.”
…The Angelic intellect, entirely free and independent from matter and senses, needs no such development. It is in the full possession of its power from the very beginning of its existence. There is no need of gathering elements of knowledge bit by bit, of adding ideas to ideas in order to discover truth, as is the case with us. Having been created in the full perfection of its nature, the Angelic mind neither develops by gradual growth nor does it suffer any decay; its knowledge does not pass by consecutive steps from the haze of the morning to the splendor of the noonday brightness. From the beginning of its existence it was able to grasp the objects within its own sphere and advert to them without any fatigue in the process, moving in the dazzling light of the purely spiritual world as in its proper element. Its light is not subject to waning into twilight or disappearing into darkness, as is the case, unfortunately, with the human mind in this life.
Being by nature higher than man and much closer to God, the Angels receive more of His light, that is, a greater power of understanding, infused ideas, mind-pictures representing external objects, the spiritual and material creatures of this universe.
The process of Angelic knowing and understanding seems to consist in a placid gazing on these ideas or mind-pictures existing within its intellect from the beginning, actuated either by the Angelic will, or the need of the moment.